Quartz Crystal Resonators
STANDARD RESISTANCE WELD HC49/U SMD PACKAGE - HC49USMD Series
FEATURES
RoHS Compliant (Pb-Free), Wide Frequency Range Available
AT-cut Crystal, Excellent Aging, Extended Temperature Range
Industry Standard Package, Low Cost, Poplular Microprocessor Crystals
Formed Leads SMT with Tape & Reel Packing
SPECIFICATIONS
Frequency Range
Resonance Mode
Calibration Tolerance @25°C
Frequency Stability Ref @25°C
Temperature Range
Crystal Aging
Storage Temperature
Load Capacitance (CL)
Shunt Capacitance
Drive Level
Pullability (option)
Creating a Part Number
Product Series
Frequency
Resonance Mode: 1 = Fundamental
3 = 3rd Overtone
5 = 5th Overtone
1.8432 MHz to 200.000 MHz
1 = Fundamental (1 to 40 MHz); 3 = 3rd Overtone (20 to 100 MHz)
5 = 5th Overtone (80 to 150 MHz); 7 = 7th Overtone (110 to 200 MHz)
A = ±50 ppm; B = ±30 ppm; C = ±20 ppm; D = ±15 ppm; E = ±10 ppm
100 = ±100 ppm; 50 = ±50 ppm; 25 = ±25 ppm; 10 = ±10 ppm
A = 0°C to 70°C; B = -40°C to 85°C; C = -10°C to 60°C; D = -20°C to 70°C
±5 ppm / year Maximum
-55°C to 125°C
CL = 18 pF (Standard), 16 pF, 20 pF, others, or S = Series resonant
7 pF Maximum
0.1 mW Typical, 1 mW Maximum
May be specified in terms of frequency shift over a certain range of CL
HC49USMD-10M000-1 A 50 D 18
-options
Load Capacitance: 18, 16, 20, S = Series resonant
Operating Temperature Range: A = 0 to 70°C
Frequency Stability:
Tolerance at 25°C:
A = ±50 ppm
B = ±30 ppm
C = ±20 ppm
100 = ±100 ppm
50 = ±50 ppm
30 = ±30 ppm
B = -40 to 85°C
D = -20 to 70°C
Equivalent Series Resistance
Frequency (MHz)
1.800 - 1.999
2.000 - 2.399
2.400 - 2.999
3.000 - 3.199
3.200 - 3.699
3.700 - 4.199
4.200 - 5.999
OUTLINE DRAWING
Mode
Fund
Fund
Fund
Fund
Fund
Fund
Fund
Max ESR (Ohms)
750
500
250
150
120
100
70
Frequency (MHz)
6.000 - 7.999
8.000 - 12.499
12.500 - 15.999
16.000 - 40.000
23.000 - 100.00
80.000 - 150.00
110.00 - 200.00
Mode
Fund
Fund
Fund
Fund
3rd O/T
5th O/T
7th O/T
Max ESR (Ohms)
40
35
25
20
40
80
120
Recommended Solder Pad Layout
1.27
11.05 MAX
5.99 MAX
1.29
13.46 MAX
0.99
4.65 MAX
3.61
4.88
±
0.2
2.79
2.54
13.46
17.04 MAX
0.43
(x2)
All dimensions are typical unless otherwise specified
Dimensions in Millimeters
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1.27
(x3)
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